JE Pistons 182025 JE Pistons; 23deg Dome; Solid Dome Design; Oil Rail Support is Included; Set of 8 Pistons; Recommended RingSet: J10008-4130-5
JE Pistons - Domestic: For over 60 years, JE Pistons has been the industry leader in forged racing pistons for Chevy, Ford, Mopar and Buick engines.
Features:
- Application Specific Forgings for an Optimized, Uniform Crown Thickness
- Contact Reduction Groove to Minimize Frictional Drag
- Accumulator Groove for Increased Top Ring Stability and Sealing
- CNC-Machined Side Relief with Lower Support Band for Additional Skirt Strength
- Honed Pin Bores, Double Pressure Fed Pin Oilers and Wire Locks Included
Specifications:
- Comp Ratio @ 64cc: 13.4:1
- Bore: 4.13
- CID: 429
- Dome Volume: 3
- Oversize: 0.005
- Rod: 6
- Comp Height: 1
- Block Height: 9
- Comp Ratio @ 58cc: 14.6:1
- Comp Ratio @ 76cc: 11.6:1
- Gram Weight: 435
- Stroke: 4
Fitments:
- Chevrolet 400 Small Block (1970-1980)